[GiNaC-devel] Substituting indices

[Chris Dams]

Hello again,

Sometimes I misuse indices by not just having them as operands of indexed
objects but, for example, as elements of lists. In this case it can be
quite useful to be able to substitute them for objects that are not
indices.  However, this is not really possible because substituting
indices by objects that are not indices really substitutes the value. For
this reason I introduced a subs_option really_subs_idx that turns this
behaviour off.
The change is in CVS.

Best wishes,
Chris